openGL bad audio

helios's icon

hi,
sorry for my bad english ..
i did a M4L patch to draw with audio trigger a lot of line
a jit.cellblock to manage the line via a poly~ object to have a lot of instance
to draw i use jit.gl.sketch.
my patch run correctly, i have 30FPS good
BUT when i play sound in live, it's so bad!!!! crshhh..crrrchchch... crh..crrr.. you ear?
what is wrong? when i use it only with max/msp/jitter and play sound it works perfectly, but with MFL ...catastrophe!!!
thank's for your help
babs